java - SlidingTabLayout, Restarts fragment On case 4 to 1? -


my slidingtablayout restarts fragment dashboard activity when switching fragment tags fragment dashboard, or position 4 0. here code have written far, can shed light on situation ?

 public class sectionspageradapter extends fragmentstatepageradapter {     public sectionspageradapter(fragmentmanager fm) {         super(fm);     }      @override     public fragment getitem(int position) {         //2 steps creating fragment, create fragment class , create ui         fragment fragment = null;         //we dont want return our place holder fragment instead want switch bewtween 3         //create switch case based on position applied or fragment selected         switch (position) {             case home:                 fragment = dashboard.newinstance("","");                 break;             case tags:                 fragment = tags.newinstance("","");                 break;             case my_recent:                 fragment = myposts.newinstance("","");                 break;             case top:                 fragment = top.newinstance("", "");                 break;         }         return fragment;     }      @override     public int getcount() {         // show 3 total pages.         return 4;     }      @override     public charsequence getpagetitle(int position) {         switch (position) {             case 0:                 return "home";             case 1:                 return "top";             case 2:                 return "recent";             case 3:                 return "tags";         }         return null;     } }

you have load fragment in 1 time, should call method 

int size=4; viewpager.setoffscreenpagelimit(size);

after set adapter, size no of fragment want load first time


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